565640364 has 12 divisors (see below), whose sum is σ = 1319827544. Its totient is φ = 188546784.

The previous prime is 565640359. The next prime is 565640399. The reversal of 565640364 is 463046565.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23568337 + ... + 23568360.

Almost surely, 2^565640364 is an apocalyptic number.

It is an amenable number.

565640364 is an abundant number, since it is smaller than the sum of its proper divisors (754187180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

565640364 is a wasteful number, since it uses less digits than its factorization.

565640364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47136704 (or 47136702 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The square root of 565640364 is about 23783.1949914220. The cubic root of 565640364 is about 827.0151479811.

The spelling of 565640364 in words is "five hundred sixty-five million, six hundred forty thousand, three hundred sixty-four".